package com.ys.gulimall.product.exception;

import com.ys.common.exception.BizCodeEnum;
import com.ys.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.HttpStatus;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * 集中处理数据校验异常
 * @author： yeswater
 * @create： 2024/5/7
 */

@Slf4j
@RestControllerAdvice(basePackages = "com.ys.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {
	
	/**
	 * 参数非法（效验参数）异常 MethodArgumentNotValidException
	 * @param e
	 * @return
	 */
	@ExceptionHandler(MethodArgumentNotValidException.class)
	@ResponseStatus(HttpStatus.BAD_REQUEST)
	public R handleValidException(MethodArgumentNotValidException e) {
		log.error("数据效验出现问题{},异常类型{}",e.getMessage(),e.getClass());
		BindingResult bindingResult = e.getBindingResult();
		
		Map<String,String> errMap = new HashMap<>();
		bindingResult.getFieldErrors().forEach((fieldError) -> {
			errMap.put(fieldError.getField(),fieldError.getDefaultMessage());
		});
		return R.error(BizCodeEnum.VALID_EXCEPTION.getCode(),BizCodeEnum.VALID_EXCEPTION.getMessage())
				       .put("data",errMap);
	}
	
	
	@ExceptionHandler(value = Throwable.class)
	public R handleException(Throwable throwable) {
		
		log.error("错误异常{}",throwable);
		
		return R.error(BizCodeEnum.UNKNOWN_EXCEPTION.getCode(),BizCodeEnum.UNKNOWN_EXCEPTION.getMessage());
	}
	
}
